@charset "UTF-8";
/* ==========================================================================
   典律网 · 样式表（零 CDN：系统字体栈 + 内联 SVG + 本地图片）
   版面语言「法典条文式照排」：左侧条号栏 + 1px 竖分栏线 + 目录点线 + 卷次台账
   --------------------------------------------------------------------------
   约定（务必遵守，均在历史项目中踩过）：
   1) .wrap 只负责左右内边距 -> 用 width + margin，绝不与其修饰类叠写 padding 简写；
      与 .wrap 同元素的类（.hero__in / .list-layout / .art-layout / .form-layout …）
      只能写 padding-block，禁止 padding 简写。
   2) 全局禁止 background-image（渐变底纹一律用绝对定位的内联 <svg>），
      这样对比度探针才能取到真实底色。
   3) 深色区不做「浅色卡片」——浅底卡片放进深色区极容易白底白字。
   4) <svg> 与 <img> 不共用复位规则；图标尺寸一律 width/height 成对。
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌
   -------------------------------------------------------------------------- */
:root {
  --paper: #f5f3f0;
  --paper-2: #ece7e1;
  --card: #fbfaf8;
  --ink: #1b1a20;
  --ink-2: #3d3a45;
  --muted: #625d6b;          /* 浅底三级灰：paper 5.7:1 / paper-2 5.1:1 / card 6.1:1 */
  --line: #ded8d1;
  --line-2: #c9c0b7;

  --deep: #241a2e;           /* 乌紫黑 */
  --deep-2: #33253f;
  --deep-3: #4a3560;

  --brand: #b5179e;          /* 洋红紫（浅底文字 5.3:1） */
  --brand-d: #8e1079;        /* 浅底深一档 8.1:1 */
  --brand-l: #e07ad2;        /* 深底专用 6.2:1 */
  --amber: #c98a1b;          /* 深底装饰/文字 5.7:1 */
  --amber-d: #8a5b10;        /* 浅底文字 5.4:1 */
  --teal: #1f7a78;           /* 浅底 4.9:1 */
  --teal-l: #7fd3c0;         /* 深底 9.5:1 */

  --on-dark: #f4f0f7;
  --on-dark-2: #b3aabd;      /* 深底三级灰 7.5:1 */

  --serif: Georgia, "Times New Roman", "Source Han Serif SC", "Noto Serif SC", "Songti SC", SimSun, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --r: 10px;
  --r-lg: 16px;
  --shadow: 0 1px 2px rgba(36, 26, 46, .05), 0 8px 24px -18px rgba(36, 26, 46, .35);
  --hdr: 74px;
}

/* --------------------------------------------------------------------------
   2. 复位与基础
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  overflow-x: clip;                 /* clip 不产生滚动容器，sticky 仍然有效 */
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; display: block; border: 0; }
svg { display: inline-block; vertical-align: -.125em; flex: 0 0 auto; }

h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.25; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

/* 图标：尺寸成对，随字号缩放 */
.i { width: 1em; height: 1em; }

/* 图标精灵容器必须彻底不占位（否则浏览器按 300×150 撑出空白） */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden; white-space: nowrap;
  clip: rect(0 0 0 0); clip-path: inset(50%);
}

/* 无障碍跳转：隐藏时不得带 padding，否则 1px 盒子被撑大压住 logo */
.skip {
  position: absolute; left: 0; top: 0; z-index: 200;
  width: 1px; height: 1px; padding: 0; border: 0;
  overflow: hidden; white-space: nowrap;
  clip: rect(0 0 0 0); clip-path: inset(50%);
  background: var(--brand); color: #fff;
  font-size: .9rem; font-weight: 600;
}
.skip:focus { width: auto; height: auto; clip: auto; clip-path: none; padding: 10px 18px; }

.wrap { width: min(1200px, 100% - 40px); margin-inline: auto; }

/* --------------------------------------------------------------------------
   3. 通用区块
   -------------------------------------------------------------------------- */
.sec { padding-block: 52px 56px; }
.sec--tint { background: var(--paper-2); }
.sec--dark { background: var(--deep); color: var(--on-dark); }

.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px 20px;
  padding-bottom: 16px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.sec-head::after {
  content: ""; position: absolute; left: 0; bottom: -1px;
  width: 62px; height: 2px; background: var(--brand);
}
.sec-head__main { min-width: 0; }
.sec-head__no {
  display: block;
  font-family: var(--mono); font-size: .72rem; font-weight: 700;
  letter-spacing: .2em; color: var(--amber-d); margin-bottom: 7px;
}
.sec-head__title {
  font-family: var(--serif);
  font-size: clamp(1.32rem, 3.6vw, 1.78rem);
  letter-spacing: .01em;
}
.sec-head__sub { margin-top: 8px; color: var(--muted); font-size: .88rem; }
.sec-head__more {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .84rem; font-weight: 600; color: var(--brand-d);
  padding-bottom: 3px; border-bottom: 1px solid transparent;
  white-space: nowrap;
}
.sec-head__more:hover { border-bottom-color: var(--brand); }
.sec-head__more .i { width: 14px; height: 14px; }

/* 深色区（浅色卡片一律不放进来） */
.sec--dark .sec-head { border-bottom-color: rgba(255, 255, 255, .16); }
.sec--dark .sec-head::after { background: var(--brand-l); }
.sec--dark .sec-head__no { color: var(--amber); }
.sec--dark .sec-head__title { color: var(--on-dark); }
.sec--dark .sec-head__sub { color: var(--on-dark-2); }
.sec--dark .sec-head__more { color: var(--brand-l); }

/* --------------------------------------------------------------------------
   4. 按钮 / 标签 / 元信息
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border: 1px solid transparent; border-radius: 999px;
  font-size: .92rem; font-weight: 600; line-height: 1.2;
  cursor: pointer; text-align: center;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.btn .i { width: 17px; height: 17px; }
.btn--lg { padding: 13px 26px; font-size: .96rem; }
.btn--brand { background: var(--brand); color: #fff; }
.btn--brand:hover { background: var(--brand-d); }
.btn--ghost { background: transparent; color: var(--on-dark); border-color: rgba(255, 255, 255, .34); }
.btn--ghost:hover { background: rgba(255, 255, 255, .1); border-color: var(--brand-l); }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .62; cursor: not-allowed; }

.chip {
  display: inline-flex; align-items: center;
  padding: 5px 13px; border-radius: 999px;
  font-size: .82rem; border: 1px solid var(--line-2); color: var(--ink-2);
  background: var(--card);
}
.chip:hover { border-color: var(--brand); color: var(--brand-d); }
.chip--dark { background: rgba(255, 255, 255, .07); border-color: rgba(255, 255, 255, .24); color: var(--on-dark); }
.chip--dark:hover { border-color: var(--brand-l); color: #fff; }

.tag {
  display: inline-flex; align-items: center;
  padding: 4px 11px; border-radius: 6px; font-size: .78rem;
  background: var(--paper-2); color: var(--ink-2); border: 1px solid transparent;
}
.tag:hover { border-color: var(--brand); color: var(--brand-d); }

.meta__cat {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: 5px;
  background: rgba(181, 23, 158, .1); color: var(--brand-d);
  font-size: .74rem; font-weight: 600;
}
.meta__i {
  display: inline-flex; align-items: center; gap: 5px;
  color: var(--muted); font-size: .78rem; font-family: var(--mono);
}
.meta__i .i { width: 13px; height: 13px; }

/* --------------------------------------------------------------------------
   5. 顶部信息条 + 主导航
   -------------------------------------------------------------------------- */
.topbar { background: var(--deep); color: var(--on-dark-2); font-size: .78rem; }
.topbar__in {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px 18px;
  padding-block: 8px;
  min-height: 34px;
}
.topbar__meta { display: flex; flex: 1 1 auto; flex-wrap: wrap; gap: 4px 18px; min-width: 0; }
/* 通用 li 规则写在前面，隐藏规则必须带上同链条，否则会被特异性压过 */
.topbar__meta li { display: flex; align-items: center; gap: 6px; min-width: 0; }
.topbar__meta li span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar__meta .i { width: 13px; height: 13px; color: var(--amber); }
.topbar__tel {
  display: inline-flex; align-items: center; gap: 6px; flex: 0 0 auto;
  color: var(--on-dark); font-family: var(--mono); font-weight: 600;
}
.topbar__tel .i { width: 13px; height: 13px; color: var(--brand-l); }
.topbar__tel:hover { color: var(--brand-l); }

.site-header {
  position: sticky; top: 0; z-index: 80;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.header-in {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 10px 16px;
  padding-block: 12px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; order: 1; flex: 0 0 auto; }
.brand__logo { width: 44px; height: 44px; flex: 0 0 auto; }
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name { font-family: var(--serif); font-size: 1.24rem; font-weight: 700; letter-spacing: .04em; }
.brand__sub { font-family: var(--mono); font-size: .62rem; letter-spacing: .16em; color: var(--muted); }

.nav-toggle {
  display: none; order: 2; margin-left: auto;
  width: 42px; height: 42px; align-items: center; justify-content: center;
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 9px; cursor: pointer;
  color: var(--ink);
}
.nav-toggle .i { width: 20px; height: 20px; }
.nav-toggle__close { display: none; }
.site-header.is-collapsible .nav-toggle[aria-expanded="true"] .nav-toggle__open { display: none; }
.site-header.is-collapsible .nav-toggle[aria-expanded="true"] .nav-toggle__close { display: block; }

.nav { order: 3; flex: 1 1 auto; min-width: 0; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__link {
  display: block; padding: 9px 13px; border-radius: 7px;
  font-size: .93rem; font-weight: 600; color: var(--ink-2);
  border-bottom: 2px solid transparent;
}
.nav__link:hover { color: var(--brand-d); background: var(--paper-2); }
.nav__link.is-on { color: var(--brand-d); border-bottom-color: var(--brand); }
.nav__foot { display: none; }

.header-side { order: 4; display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.search { display: none; align-items: center; position: relative; }
.search__input {
  width: 100%; height: 40px; padding: 0 40px 0 14px;
  background: var(--paper); border: 1px solid var(--line-2); border-radius: 999px;
  font-size: .86rem;
}
.search__input::placeholder { color: var(--muted); }
.search__btn {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center;
  border: 0; border-radius: 999px; background: var(--brand); color: #fff; cursor: pointer;
}
.search__btn .i { width: 16px; height: 16px; }

/* --------------------------------------------------------------------------
   6. Hero（深色底 + 右侧卷次台账）
   -------------------------------------------------------------------------- */
.hero { position: relative; background: var(--deep); color: var(--on-dark); overflow: hidden; }
.hero__deco { position: absolute; inset: 0; pointer-events: none; }
.hero__deco svg { width: 100%; height: 100%; display: block; }
.hero__in {
  position: relative; z-index: 1;
  display: grid; gap: 34px;
  padding-block: 46px 52px;
}
.hero__kicker {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .22em;
  color: var(--amber); margin-bottom: 14px;
}
.hero__title {
  font-family: var(--serif);
  font-size: clamp(1.85rem, 7.2vw, 3.35rem);
  line-height: 1.22; letter-spacing: .01em;
}
.hero__desc { margin-top: 16px; color: var(--on-dark-2); font-size: .96rem; max-width: 34em; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero__hot { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 26px; }
.hero__hot-label { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; color: var(--on-dark-2); margin-right: 2px; }

.ledger {
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r);
  background: rgba(255, 255, 255, .04);
  padding: 18px 18px 14px;
  min-width: 0;
}
.ledger__cap {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .2em;
  color: var(--amber); padding-bottom: 10px; border-bottom: 1px solid rgba(255, 255, 255, .14);
}
.ledger__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline; gap: 12px;
  padding-block: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.ledger__no { font-family: var(--mono); font-size: .72rem; color: var(--brand-l); letter-spacing: .08em; }
.ledger__lab { color: var(--on-dark-2); font-size: .84rem; }
.ledger__val {
  font-family: var(--mono); font-size: 1.3rem; font-weight: 700; color: var(--on-dark);
  display: flex; align-items: baseline; gap: 3px;
}
.ledger__val i { font-style: normal; font-size: .72rem; color: var(--on-dark-2); }
.ledger__foot { padding-top: 12px; font-size: .74rem; color: var(--on-dark-2); font-family: var(--mono); }

/* --------------------------------------------------------------------------
   7. 分类目次（点线）
   -------------------------------------------------------------------------- */
.toc-grid { display: grid; gap: 0 44px; }
.toc-row {
  display: grid;
  grid-template-columns: auto auto minmax(14px, 1fr) auto;
  align-items: baseline; column-gap: 10px;
  padding-block: 13px;
  border-bottom: 1px solid var(--line);
}
.toc-row__no { font-family: var(--mono); font-size: .72rem; color: var(--amber-d); letter-spacing: .04em; }
.toc-row__name { font-weight: 700; font-size: .98rem; white-space: nowrap; }
.toc-row__dots { border-bottom: 1px dotted var(--line-2); transform: translateY(-4px); min-width: 14px; }
.toc-row__n { font-family: var(--mono); font-size: .78rem; color: var(--muted); white-space: nowrap; }
.toc-row__desc { grid-column: 2 / -1; margin-top: 5px; font-size: .8rem; color: var(--muted); }
.toc-row:hover .toc-row__name { color: var(--brand-d); }
.toc-row:hover .toc-row__n { color: var(--brand-d); }

/* --------------------------------------------------------------------------
   8. 带缩略图区（1 大 + 3 小）
   -------------------------------------------------------------------------- */
.feat-grid { display: grid; gap: 26px; }
.fbig {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; display: grid;
}
.fbig__media { display: block; background: var(--paper-2); }
.fbig__media img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; }
.fbig__body { padding: 18px 18px 20px; min-width: 0; display: block; }
.fbig__title { display: block; margin: 10px 0 0; font-family: var(--serif); font-size: 1.2rem; line-height: 1.42; }
.fbig__title a:hover { color: var(--brand-d); }
.fbig__desc { display: block; margin-top: 10px; color: var(--muted); font-size: .9rem; }
.fbig__more {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 14px;
  font-size: .84rem; font-weight: 600; color: var(--brand-d);
}
.fbig__more .i { width: 15px; height: 15px; }

.feat-side { display: grid; gap: 0; }
.fed {
  display: grid; grid-template-columns: 104px minmax(0, 1fr);
  gap: 14px; align-items: center;
  padding-block: 16px; border-bottom: 1px solid var(--line);
}
.fed__media { display: block; border-radius: 8px; overflow: hidden; background: var(--paper-2); }
.fed__media img { width: 100%; height: auto; aspect-ratio: 8 / 5; object-fit: cover; }
.fed__body { min-width: 0; }
.fed__title { display: block; font-size: .96rem; line-height: 1.5; margin-top: 7px; }
.fed__title a:hover { color: var(--brand-d); }
.fed .cx__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }

/* --------------------------------------------------------------------------
   9. 条文式条目（签名结构：条号栏 + 竖分栏线）
   -------------------------------------------------------------------------- */
.cx {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 0;
  padding-block: 16px 18px;
  border-bottom: 1px solid var(--line);
}
.cx__no {
  font-family: var(--mono); font-size: .72rem; font-weight: 600;
  color: var(--amber-d); letter-spacing: .04em; padding-top: 3px;
}
.cx__body { border-left: 1px solid var(--line-2); padding-left: 14px; min-width: 0; }
.cx__title { display: block; font-size: 1rem; line-height: 1.5; font-weight: 700; }
.cx__title a:hover { color: var(--brand-d); }
.cx__desc { display: block; margin-top: 7px; color: var(--muted); font-size: .87rem; }
.cx__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 9px; }
.cx:hover .cx__no { color: var(--brand); }

.pair-grid { display: grid; gap: 0 44px; grid-template-columns: minmax(0, 1fr); }

/* --------------------------------------------------------------------------
   10. 编年索引（三列）
   -------------------------------------------------------------------------- */
.idx-grid { display: grid; gap: 0; }
.idx-col { padding-block: 6px 10px; min-width: 0; }
.idx-col__head {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  padding-bottom: 10px; margin-bottom: 4px;
  border-bottom: 1px solid var(--line-2);
  font-size: .96rem;
}
.idx-col__head .i { width: 17px; height: 17px; color: var(--brand); }
.idx-col__book { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; color: var(--amber-d); }
.idx-col__name { font-weight: 700; }
.idx-col__list li {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline; gap: 12px;
  padding-block: 11px; border-bottom: 1px dotted var(--line-2);
}
.idx-col__list a { font-size: .9rem; line-height: 1.55; }
.idx-col__list a:hover { color: var(--brand-d); }
.idx-col__date { font-family: var(--mono); font-size: .74rem; color: var(--muted); white-space: nowrap; }
.idx-grid--plain .cx { border-bottom: 1px solid var(--line); }

/* --------------------------------------------------------------------------
   11. 办事流程
   -------------------------------------------------------------------------- */
.flow-grid { display: grid; gap: 18px; }
.flow__item {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--card);
}
.flow__no {
  display: block;
  font-family: var(--mono); font-size: 1.5rem; font-weight: 700;
  color: var(--brand); line-height: 1; margin-bottom: 12px;
}
.flow__title { display: block; font-size: 1rem; }
.flow__desc { display: block; margin-top: 8px; color: var(--muted); font-size: .86rem; }

/* --------------------------------------------------------------------------
   12. 表单（深色区 + 无浅色卡片，全部下划线/半透明描边式控件）
   -------------------------------------------------------------------------- */
.form-layout { display: grid; gap: 32px; }
.form-side__title { font-family: var(--serif); font-size: 1.3rem; color: var(--on-dark); }
.form-side__desc { margin-top: 12px; color: var(--on-dark-2); font-size: .92rem; }
.form-steps { margin-top: 20px; display: grid; gap: 0; }
.form-steps li {
  display: grid; grid-template-columns: 34px minmax(0, 1fr);
  align-items: baseline; gap: 10px;
  padding-block: 11px; border-bottom: 1px solid rgba(255, 255, 255, .12);
  font-size: .88rem; color: var(--on-dark);
}
.form-steps li span { font-family: var(--mono); font-size: .74rem; color: var(--amber); }
.form-promise { margin-top: 18px; display: grid; gap: 10px; }
.form-promise li { display: flex; gap: 9px; align-items: flex-start; font-size: .84rem; color: var(--on-dark-2); }
.form-promise li .i { width: 15px; height: 15px; color: var(--teal-l); margin-top: 4px; }

.form-panel {
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, .04);
  padding: 20px 18px 22px;
  min-width: 0;
}
.form-alert {
  display: block; margin-bottom: 16px; padding: 11px 14px;
  border: 1px solid transparent; border-radius: 8px;
  font-size: .86rem; line-height: 1.6;
}
.form-alert[hidden] { display: none; }
.form-alert.is-err { color: var(--brand-l); border-color: rgba(224, 122, 210, .5); background: rgba(224, 122, 210, .1); }
.form-alert.is-ok { color: var(--teal-l); border-color: rgba(127, 211, 192, .5); background: rgba(127, 211, 192, .1); }

.field-grid { display: grid; gap: 16px; }
.field { min-width: 0; }
.field__lab { display: block; margin-bottom: 7px; font-size: .84rem; font-weight: 600; color: var(--on-dark); }
.field__lab i { font-style: normal; color: var(--brand-l); }
.field__inp {
  display: block; width: 100%;
  padding: 11px 13px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 8px;
  color: var(--on-dark);
  font-size: .92rem;
}
.field__inp::placeholder { color: var(--on-dark-2); }
.field__inp--area { resize: vertical; min-height: 96px; line-height: 1.7; }
.field__inp.is-ok { border-color: rgba(127, 211, 192, .62); }
.field__inp.is-err { border-color: var(--brand-l); }
.field__sel { position: relative; }
.field__sel select { appearance: none; -webkit-appearance: none; padding-right: 38px; }
.field__sel::after {
  content: ""; position: absolute; right: 15px; top: 50%;
  width: 0; height: 0; margin-top: -2px;
  border: 5px solid transparent; border-top-color: var(--on-dark-2);
  pointer-events: none;
}
.field__sel select option { color: var(--ink); background: #fff; }
.field__msg { display: none; margin-top: 6px; font-size: .78rem; color: var(--brand-l); }
.field__msg.is-on { display: block; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .83rem; color: var(--on-dark-2); line-height: 1.65; }
.consent input { width: 17px; height: 17px; margin-top: 3px; flex: 0 0 auto; accent-color: var(--brand); }
.form-actions { margin-top: 22px; display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.form-actions__note { font-size: .84rem; color: var(--on-dark-2); }
.form-actions__note a { color: var(--brand-l); font-family: var(--mono); font-weight: 600; }

/* --------------------------------------------------------------------------
   13. FAQ（原生 details，无 JS 也可展开）
   -------------------------------------------------------------------------- */
.faq-list { display: grid; gap: 0; }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline; gap: 14px;
  padding-block: 16px; cursor: pointer; list-style: none;
  font-weight: 700; font-size: .98rem;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::marker { content: ""; }
.faq__no { font-family: var(--mono); font-size: .72rem; color: var(--amber-d); font-weight: 600; }
.faq__ico { width: 18px; height: 18px; color: var(--brand); transition: transform .2s ease; }
.faq__item[open] .faq__ico { transform: rotate(180deg); }
.faq__a { padding: 0 0 18px; }
.faq__a p { color: var(--muted); font-size: .9rem; max-width: 42em; margin-left: 0; }
.faq__q:hover .faq__text { color: var(--brand-d); }

/* --------------------------------------------------------------------------
   14. 友情链接（索引式，非 chips）
   -------------------------------------------------------------------------- */
.linklist { display: grid; gap: 0; }
.linklist__group { padding-block: 4px 10px; }
.linklist__label {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .74rem; letter-spacing: .12em;
  color: var(--amber-d); padding-bottom: 10px; border-bottom: 1px solid var(--line-2);
}
.linklist__label .i { width: 15px; height: 15px; color: var(--brand); }
.linklist__list { display: flex; flex-wrap: wrap; gap: 0; }
.linklist__list li { display: flex; align-items: center; }
.linklist__list li + li::before { content: ""; width: 1px; height: 12px; background: var(--line-2); margin-inline: 12px; }
.linklist__list a { font-size: .87rem; color: var(--ink-2); padding-block: 9px; }
.linklist__list a:hover { color: var(--brand-d); }

/* --------------------------------------------------------------------------
   15. 关于本站
   -------------------------------------------------------------------------- */
.about-grid { display: grid; gap: 22px; }
.about-col {
  border-left: 3px solid var(--brand);
  padding: 2px 0 2px 16px;
}
.about-col__title { display: flex; align-items: center; gap: 8px; font-size: 1rem; }
.about-col__title .i { width: 17px; height: 17px; color: var(--brand); }
.about-col p { margin-top: 10px; color: var(--muted); font-size: .89rem; }

/* --------------------------------------------------------------------------
   16. 内页 banner + 面包屑
   -------------------------------------------------------------------------- */
.page-banner { position: relative; background: var(--paper-2); border-bottom: 1px solid var(--line); overflow: hidden; }
.page-banner__deco {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: min(560px, 62%); pointer-events: none; opacity: .62;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 46%);
  mask-image: linear-gradient(to right, transparent, #000 46%);
}
.page-banner__deco svg { width: 100%; height: 100%; display: block; }
.page-banner__in { position: relative; z-index: 1; padding-block: 38px 34px; }
.page-banner__kicker {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .2em;
  color: var(--amber-d); margin-bottom: 12px;
}
.page-banner__title {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.34rem, 4.6vw, 2.2rem);
  line-height: 1.34; max-width: 26em;
}
.page-banner__desc { margin-top: 14px; color: var(--muted); font-size: .92rem; max-width: 40em; }
.page-banner__stats { display: grid; gap: 0; margin-top: 24px; max-width: 560px; }
.pb__stat {
  display: flex; align-items: baseline; justify-content: space-between; gap: 14px;
  padding-block: 9px; border-top: 1px solid var(--line-2);
}
.pb__num { font-family: var(--mono); font-size: 1.02rem; font-weight: 700; color: var(--ink); }
.pb__lab { font-size: .8rem; color: var(--muted); }

.crumb { background: var(--card); border-bottom: 1px solid var(--line); font-size: .8rem; }
.crumb__in { padding-block: 11px; }
.crumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; color: var(--muted); }
.crumb__item { display: flex; align-items: center; gap: 6px; min-width: 0; }
.crumb__item + .crumb__item::before { content: "/"; color: var(--line-2); }
.crumb__item a { display: inline-flex; align-items: center; gap: 5px; color: var(--ink-2); }
.crumb__item a:hover { color: var(--brand-d); }
.crumb__item .i { width: 13px; height: 13px; }
.crumb__item:last-child span { color: var(--brand-d); font-weight: 600; }

/* --------------------------------------------------------------------------
   17. 列表页
   -------------------------------------------------------------------------- */
.list-layout { display: grid; gap: 34px; }
.filters { display: flex; flex-wrap: wrap; gap: 9px; padding-bottom: 22px; }
.filter {
  display: inline-flex; align-items: center;
  padding: 7px 15px; border-radius: 999px; font-size: .84rem;
  border: 1px solid var(--line-2); color: var(--ink-2); background: var(--card);
}
.filter:hover { border-color: var(--brand); color: var(--brand-d); }
.filter.is-on { background: var(--brand); border-color: var(--brand); color: #fff; }

.list-top { display: grid; gap: 22px; margin-bottom: 30px; }
.lit { display: grid; gap: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.lit__media { display: block; background: var(--paper-2); }
.lit__media img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; }
.lit__body { padding: 16px 18px 18px; min-width: 0; }
.lit__title { margin-top: 10px; font-family: var(--serif); font-size: 1.1rem; line-height: 1.45; }
.lit__title a:hover { color: var(--brand-d); }
.lit__desc { margin-top: 9px; color: var(--muted); font-size: .88rem; }

.list-codex { display: grid; gap: 0; }

.pager { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 30px; }
.pager__item {
  display: inline-flex; align-items: center; gap: 6px;
  min-width: 40px; height: 40px; padding-inline: 13px;
  justify-content: center;
  border: 1px solid var(--line-2); border-radius: 8px;
  font-family: var(--mono); font-size: .86rem; color: var(--ink-2); background: var(--card);
}
.pager__item:hover { border-color: var(--brand); color: var(--brand-d); }
.pager__item.is-on { background: var(--brand); border-color: var(--brand); color: #fff; }
.pager__item--nav { font-family: var(--sans); font-size: .84rem; }
.pager__item .i { width: 15px; height: 15px; }

.list-side { display: grid; gap: 22px; min-width: 0; }
.widget { border: 1px solid var(--line); border-radius: var(--r); background: var(--card); padding: 18px 16px 18px; }
.widget__title {
  display: flex; align-items: center; gap: 8px;
  font-size: .94rem; padding-bottom: 12px; margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.widget__title .i { width: 17px; height: 17px; color: var(--brand); }
.widget__toc li + li { border-top: 1px dotted var(--line-2); }
.widget__toc a { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding-block: 9px; font-size: .87rem; }
.widget__toc a:hover { color: var(--brand-d); }
.widget__toc b { font-family: var(--mono); font-size: .76rem; color: var(--muted); font-weight: 600; }
.widget__hot { display: grid; gap: 0; }
.hotli {
  display: grid; grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: baseline; gap: 8px;
  padding-block: 10px; border-bottom: 1px dotted var(--line-2);
}
.hotli:last-child { border-bottom: 0; }
.hotli__no { font-family: var(--mono); font-size: .72rem; color: var(--amber-d); font-weight: 600; }
.hotli a { font-size: .86rem; line-height: 1.55; }
.hotli a:hover { color: var(--brand-d); }
.hotli__v { font-family: var(--mono); font-size: .72rem; color: var(--muted); white-space: nowrap; }
.widget__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.widget__arch li { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding-block: 9px; border-bottom: 1px dotted var(--line-2); font-size: .86rem; }
.widget__arch li:last-child { border-bottom: 0; }
.widget__arch span { font-family: var(--mono); font-size: .74rem; color: var(--muted); }
.widget__arch a:hover { color: var(--brand-d); }

/* 深色 widget：文字与底色成对声明，避免继承错色 */
.widget--dark { background: var(--deep); border-color: var(--deep); color: var(--on-dark); }
.widget--dark .widget__title { color: var(--on-dark); border-bottom-color: rgba(255, 255, 255, .16); }
.widget--dark .widget__title .i { color: var(--amber); }
.widget--dark .hotli { border-bottom-color: rgba(255, 255, 255, .12); }
.widget--dark .hotli__no { color: var(--amber); }
.widget--dark .hotli__v { color: var(--on-dark-2); }
.widget--dark .hotli a { color: var(--on-dark); }
.widget--dark .hotli a:hover { color: var(--brand-l); }

.widget--cta { border-color: var(--line-2); }
.widget--cta p { color: var(--muted); font-size: .86rem; margin-bottom: 14px; }

/* --------------------------------------------------------------------------
   18. 文章页
   -------------------------------------------------------------------------- */
.art-layout { display: grid; gap: 34px; }
.art-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.art-lead {
  margin-top: 22px; padding-left: 16px; border-left: 3px solid var(--brand);
  font-size: 1.02rem; color: var(--ink-2);
}
.art-main { min-width: 0; }

.prose { margin-top: 26px; font-size: 1.04rem; line-height: 1.95; max-width: 38em; }
.prose > * + * { margin-top: 18px; }
.prose h2 {
  margin-top: 40px; padding-left: 14px; border-left: 3px solid var(--brand);
  font-family: var(--serif); font-size: 1.28rem; line-height: 1.5;
  scroll-margin-top: 100px;
}
.prose h3 { margin-top: 28px; font-size: 1.06rem; }
.prose p { color: var(--ink-2); }
.prose ul, .prose ol { display: grid; gap: 10px; padding-left: 0; }
.prose ul li, .prose ol li { position: relative; padding-left: 20px; color: var(--ink-2); font-size: 1rem; }
.prose ul li::before {
  content: ""; position: absolute; left: 2px; top: .72em;
  width: 6px; height: 6px; background: var(--brand); border-radius: 1px;
}
.prose ol { counter-reset: li; }
.prose ol li { counter-increment: li; padding-left: 28px; }
.prose ol li::before {
  content: counter(li, decimal-leading-zero);
  position: absolute; left: 0; top: .1em;
  font-family: var(--mono); font-size: .78rem; color: var(--brand-d); font-weight: 600;
}
.prose__quote {
  display: flex; gap: 12px; margin-inline: 0;
  padding: 18px 20px; background: var(--paper-2); border-radius: var(--r);
}
.prose__quote .i { width: 22px; height: 22px; color: var(--brand); flex: 0 0 auto; }
.prose__quote p { font-size: .96rem; color: var(--ink-2); }
.prose__fig { margin: 26px 0 0; }
.prose__fig img { width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--r); }
.prose__fig figcaption { margin-top: 10px; font-size: .8rem; color: var(--muted); }
.table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); }
.table-wrap table { min-width: 480px; font-size: .88rem; }
.table-wrap caption { caption-side: top; text-align: left; padding: 12px 14px 0; font-size: .8rem; color: var(--muted); }
.table-wrap th, .table-wrap td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.table-wrap thead th { background: var(--paper-2); font-size: .84rem; color: var(--ink); white-space: nowrap; }
.table-wrap tbody th { font-weight: 600; color: var(--ink); }
.table-wrap td { color: var(--ink-2); }
.tip { border: 1px solid var(--line-2); border-left: 3px solid var(--amber); border-radius: var(--r); padding: 16px 18px; background: var(--card); }
.tip__title { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: .92rem; color: var(--amber-d); margin-bottom: 8px; }
.tip__title .i { width: 17px; height: 17px; }
.tip p { font-size: .9rem; color: var(--ink-2); }

.art-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line); }
.art-tags__lab { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--muted); }
.art-tags__lab .i { width: 15px; height: 15px; }

.prevnext { display: grid; gap: 14px; margin-top: 26px; }
.prevnext__item {
  display: block; padding: 15px 17px;
  border: 1px solid var(--line); border-radius: var(--r); background: var(--card);
}
.prevnext__item--next { text-align: right; }
.prevnext__lab { display: flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--muted); margin-bottom: 7px; }
.prevnext__item--next .prevnext__lab { justify-content: flex-end; }
.prevnext__lab .i { width: 14px; height: 14px; }
.prevnext__title { display: block; font-size: .92rem; font-weight: 600; line-height: 1.55; }
.prevnext__item:hover { border-color: var(--brand); }
.prevnext__item:hover .prevnext__title { color: var(--brand-d); }

.art-side { min-width: 0; }
.art-side__inner { display: grid; gap: 20px; }
.widget--toc .toc { display: grid; gap: 0; }
.toc__link {
  display: grid; grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px; align-items: baseline;
  padding-block: 10px; border-bottom: 1px dotted var(--line-2);
  font-size: .86rem; line-height: 1.55; color: var(--ink-2);
}
.toc__link:last-child { border-bottom: 0; }
.toc__no { font-family: var(--mono); font-size: .72rem; color: var(--amber-d); }
.toc__link:hover { color: var(--brand-d); }
.toc__link.is-on { color: var(--brand-d); font-weight: 600; }
.toc__link.is-on .toc__no { color: var(--brand); }

/* --------------------------------------------------------------------------
   19. 页脚 + 移动底栏
   -------------------------------------------------------------------------- */
.site-footer { background: var(--deep); color: var(--on-dark-2); }
.footer-main { display: grid; gap: 28px; padding-block: 46px 34px; }
.brand--light .brand__name { color: var(--on-dark); }
.brand--light .brand__sub { color: var(--on-dark-2); }
.footer__desc { margin-top: 14px; font-size: .86rem; line-height: 1.8; }
.footer__contact { margin-top: 18px; display: grid; gap: 10px; }
.footer__contact li { display: flex; gap: 9px; align-items: flex-start; font-size: .84rem; }
.footer__contact .i { width: 15px; height: 15px; color: var(--amber); margin-top: 4px; }
.footer__contact b { color: var(--on-dark); font-family: var(--mono); }
.footer__title {
  display: flex; align-items: center; gap: 8px;
  font-size: .94rem; color: var(--on-dark);
  padding-bottom: 12px; margin-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}
.footer__title .i { width: 17px; height: 17px; color: var(--brand-l); }
.footer__list { display: grid; gap: 0; }
.footer__list a { display: block; padding-block: 7px; font-size: .85rem; }
.footer__list a:hover { color: var(--brand-l); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .12); }
.footer-bottom__in { display: grid; gap: 8px; padding-block: 18px; }
.footer-bottom__copy { font-size: .78rem; }
.footer-bottom__note { font-size: .76rem; line-height: 1.7; }
.footer-bottom__top { display: inline-flex; align-items: center; gap: 5px; margin-left: 10px; color: var(--on-dark); }
.footer-bottom__top .i { width: 14px; height: 14px; }
.footer-bottom__top:hover { color: var(--brand-l); }

.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: var(--card);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.mobile-bar a {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  padding-block: 9px; font-size: .74rem; color: var(--ink-2);
  border-right: 1px solid var(--line);
}
.mobile-bar a:last-child { border-right: 0; }
.mobile-bar .i { width: 19px; height: 19px; }
.mobile-bar__cta { color: var(--brand-d); }
.mobile-bar__cta .i { color: var(--brand); }

/* --------------------------------------------------------------------------
   20. 入场动画（渐进增强：默认可见，仅 js-reveal 时隐藏，且有 6s 无条件兜底）
   -------------------------------------------------------------------------- */
.reveal { opacity: 1; transform: none; }
html.js-reveal .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s ease, transform .55s ease;
}
html.js-reveal .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js-reveal .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
@media print {
  html.js-reveal .reveal { opacity: 1 !important; transform: none !important; }
  .mobile-bar, .site-header, .topbar { display: none !important; }
}

/* --------------------------------------------------------------------------
   21. 响应式
   -------------------------------------------------------------------------- */
@media (min-width: 560px) {
  .field-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field--full { grid-column: 1 / -1; }
  .cx { grid-template-columns: 54px minmax(0, 1fr); }
  .cx__body { padding-left: 18px; }
  .prevnext { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-bottom__in { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
  .page-banner__stats { max-width: 620px; }
  .ledger__val { font-size: 1.44rem; }
}

@media (min-width: 700px) {
  .sec { padding-block: 62px 66px; }
  .toc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .idx-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 30px; }
  .idx-grid--plain { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pair-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .faq__a { padding-left: 68px; }
  .about-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 30px; }
  .linklist {}
  .footer-main { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; }
  .list-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lit { grid-template-rows: auto 1fr; }
  .feat-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
  .fbig { grid-template-rows: auto 1fr; }
  .page-banner__in { padding-block: 46px 42px; }
}

@media (min-width: 980px) {
  .nav__list { flex-wrap: nowrap; }
  .header-in { gap: 0 22px; }
  .hero__in { grid-template-columns: minmax(0, 1.55fr) minmax(280px, 1fr); gap: 44px; align-items: center; padding-block: 64px 70px; }
  .toc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .idx-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 34px; }
  .idx-grid--plain { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .idx-col + .idx-col { border-left: 1px solid var(--line); padding-left: 24px; }
  .idx-grid--plain .idx-col + .idx-col { border-left: 0; padding-left: 0; }
  .flow-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .about-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .form-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 46px; }
  .footer-main { grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); gap: 34px; }
  .feat-grid { grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr); gap: 34px; }
  .page-banner__in { padding-block: 54px 48px; }
  .pb__stat { border-top: 0; border-bottom: 1px solid var(--line-2); }
}

/* 桌面端：隐藏移动底栏（用 body 提升特异性，防止被后面的基础规则反压） */
@media (min-width: 980px) {
  body .mobile-bar { display: none; }
  body { padding-bottom: 0; }
}
@media (max-width: 979px) {
  body { padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
  .site-footer { margin-bottom: 0; }
}

@media (min-width: 1180px) {
  .search { display: flex; width: 216px; }
}

/* 窄屏（≤979px）：抽屉式导航 + 全宽检索行 */
@media (max-width: 979px) {
  .nav-toggle { display: inline-flex; }
  .header-side { order: 3; flex: 1 0 100%; }
  .search { display: flex; width: 100%; }
  .header-cta { display: none; }
  .nav { order: 4; flex: 1 0 100%; }
  .nav__list { flex-wrap: wrap; gap: 4px; }
  .nav__link { border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; font-size: .9rem; }
  .nav__link.is-on { border-color: var(--brand); border-bottom-color: var(--brand); }
  .nav__foot { display: grid; gap: 10px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
  .nav__tel { display: inline-flex; align-items: center; justify-content: center; gap: 7px; font-family: var(--mono); font-weight: 600; color: var(--ink); }
  .nav__tel .i { width: 16px; height: 16px; color: var(--brand); }
  /* 折叠只在 JS 接管后生效：无脚本时导航保持展开可用 */
  .site-header.is-collapsible .nav { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
  .site-header.is-collapsible .nav.is-open { max-height: 80vh; overflow-y: auto; padding-bottom: 16px; }
}

@media (max-width: 859px) {
  .page-banner__deco { display: none; }
}

@media (max-width: 599px) {
  .topbar__meta li.topbar__addr { display: none; }
  .topbar__meta li.topbar__hours { flex: 1 1 auto; }
  /* 顶栏瘦身：320px 下 sticky 头部不宜过高 */
  .header-in { padding-block: 10px; gap: 8px 12px; }
  .brand__logo { width: 38px; height: 38px; }
  .brand__name { font-size: 1.14rem; }
  .search__input { height: 38px; }
  .hero__cta .btn { flex: 1 1 100%; }
  .form-promise li { font-size: .82rem; }
  .footer-bottom__top { margin-left: 0; margin-top: 6px; }
  .widget { padding: 16px 14px; }
  .form-panel { padding: 18px 14px 20px; }
}

@media (max-width: 379px) {
  .toc-row { grid-template-columns: auto minmax(0, 1fr) auto; row-gap: 2px; }
  .toc-row__dots { display: none; }
  .toc-row__no { grid-column: 1; }
  .toc-row__name { grid-column: 2; }
  .toc-row__n { grid-column: 3; }
  .toc-row__desc { grid-column: 1 / -1; }
}

/* --------------------------------------------------------------------------
   22. 两栏布局与粘性侧栏（放在最后，便于覆盖上面的基础规则）
   -------------------------------------------------------------------------- */
@media (min-width: 981px) {
  .list-layout { grid-template-columns: minmax(0, 1fr) 318px; gap: 40px; }
  .art-layout { grid-template-columns: minmax(0, 1fr) 318px; gap: 44px; align-items: stretch; }
  .list-side { align-self: start; }
}

/* 文章侧栏：外层拉伸到整行高，内层 sticky 才有可滚动余量（否则目录跟着正文滚走） */
@media (min-width: 1081px) {
  .art-side { align-self: stretch; }
  .art-side__inner {
    position: sticky;
    top: calc(var(--hdr) + 14px);
    max-height: calc(100vh - 108px);
    overflow-y: auto;
    padding-right: 2px;
    padding-bottom: 4px;
  }
}